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Solve for $x$ in terms of $\pi$ if: $2\sin^{2}x-\cos x - 1=0$ for $0\leq x \leq 2\pi$
in MAT1581 by Diamond (40.2k points) | 9 views

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Use the trig identity of unity first then solve the trig equation as a quadratic equatiion

by Wooden (3.5k points)
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